1、Designation: A483 04 (Reapproved 2009)Standard Specification forSilicomanganese1This standard is issued under the fixed designation A483; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parent
2、heses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers grades of silicomanganese.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parent
3、heses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:2A1025 Specification for Ferroalloys and Other AlloyingMaterials, General RequirementsE11 Specification for Woven Wire Test Sieve Cloth and Te
4、stSieves3. General Conditions for Delivery3.1 Materials furnished to this specification shall conform tothe requirements of SpecificationA1025, including any supple-mentary requirements that are indicated in the purchase order.Failure to comply with the general requirements of Specifica-tion A1025 c
5、onstitutes nonconformance with this specification.In case of conflict between the requirements of this specifica-tion and Specification A1025, this specification shall prevail.4. Chemical Composition4.1 The various grades shall conform to the requirements asto chemical composition specified in Table
6、s 1 and 2.4.2 The manufacturer shall furnish an analysis of eachshipment showing the percentage of each element specified inTable 1.4.3 Upon request of the purchaser, the manufacturer shallfurnish an analysis for the elements specified in Table 2 on acumulative basis over a period mutually agreed up
7、on by themanufacturer and the purchaser.5. Size5.1 The various grades are available in sizes as listed inTable 3.5.2 The sizes listed in Table 3 are typical as shipped fromthe manufacturers plant. These alloys exhibit varying degreesof friability; therefore, some attrition may be expected intransit,
8、 storage, and handling.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.18 on Castings.Current edition approved Oct. 1, 2009. Published January 2010. Originallyapproved in 1963. Last pr
9、evious edition approved in 2004 as A483 - 04. DOI:10.1520/A0483-04R09.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM
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15、secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 1 Chemical RequirementsElement Composition, %Grade A Grade B Grade CManganese 65.068.0 65.068.0 65.068.0Silicon 18.521.0 16.018.5 12.516.0Carbon, max 1.5 2.0 3.0Phosphorus, max 0.20 0.20 0.20Sulfur, max 0.04 0.04 0.04TABLE 2 Supplemental
16、Chemical RequirementsComposition, max, % All GradesArsenic 0.10Tin 0.010Lead 0.030Chromium 0.50Nickel 0.20Molybdenum 0.10TABLE 3 Standard Sizes and TolerancesStandard Sizes (All Grades) TolerancesA8 in. by 4 in. 90 lb lump, max 10 % max passing 4 in. (100 mm) sieve8 in. by 2 in. 90 lb lump, max 10 %
17、 max passing 2 in. (50 mm) sieve4 in. by 1 in. 10 % max retained on 4 in. (100 mm) sieve 10 % max passing 1 in. (25.0 mm) sieve2 in. by14 in. 10 % max retained on 2 in. (50 mm) sieve 10 % max passing14 in. (6.3 mm) sieve2 in. by down. 10 % max retained on 2 in. (50 mm) sieve 15 % max passing No. 8 (2.36 mm) sieveASpecifications of sieve sizes used to define tolerances in this specification are as listed in Specification E11.A483 04 (2009)2
